Vicarious Visions. Brian Bright, former Neversoft member and current project lead, noted that part of the poor sales of Guitar Hero in 2009 was a result of a loss of focus with Guitar Hero 5, stating that "we were trying to please everyone out there and I think in the end you end up not pleasing any one person a lot". With Guitar Hero: Warriors of Rock, Bright wanted to bring the game back to please the fans of the earlier Guitar Hero games, specifically the highly successful Guitar Hero III: Legends of Rock. To that end, the team developed a soundtrack "more focused on rock 'n' roll" than the variety of genres within Guitar Hero 5. The songs are more guitar-centric, as proven to be the most popular instrument choice based on Guitar Hero 5. Bright noted they used player statistics from previous games to shape Warriors of Rock; for example, according to Bright, within a month of release, 40% of the players of Guitar Hero 5 were playing on Expert mode, and felt this was the audience they needed to cater to. Bright also stated that the aim of Warriors of Rock was to create a game with "its own identity" from both previous Guitar Hero titles and other rhythm games; "Rather than go head-to-head with our own games and our competitors, we decided we wanted to make something different." Part of creating the new identity for Warriors of Rock was by creating the game's Quest mode. Activision contacted Gene Simmons, who initially thought the company was asking for a KISS song to be included in the game. Instead, when Simmons learned they wanted him to be the narrator and the voice of the Demigod, he became very interested in the project feeling that the Demigod character had elements of his own stage personality in it. Activision also approached the members of Rush for inclusion of "2112", and the group provided inspiration and feedback on the Rush-themed venues that "2112" is played in within the game. The developers also approached Dave Mustaine of Megadeth to write the music for the game's final boss battle. The Quest mode also gave Activision the opportunity to explore the characters that have been in the series since its inception but otherwise only used as player avatar. The developers were able to expand on these existing designs and gave each one a unique